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Bitcoin / Bitcoin Technical Support / bitcoin wallet issue
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on: September 29, 2011, 03:03:08 PM
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Problem with my bitcoin wallet after 11 year old sticky fingers messed with it.
I had only 5.8 bit coins in the wallet but he managed to send payment for 6.21 bit coins for a world of Warcraft game code or something. It never sent the coins (didn't have enough) but it is still showing a 0/unconfirmed since the 25th of September.
Today I decided to just make a new wallet and transfer the balance. Its been over 4 hours and still sitting at 0/unconfirmed. The new wallet is not showing any transactions and the block values keep rising (so its connected). I have 8 connections and the block values are not changing when I close my old wallet(damaged one) its connected. Any ideas how to fix this? seems like the transaction that my son is stalling everything. I would just buy the game code but the code is no longer 6.21 bit coins it went up to over 7.7 bitcoins
thanks!
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Other / CPU/GPU Bitcoin mining hardware / 4870x2 vs 5870
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on: July 15, 2011, 02:22:30 AM
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Trying to understand the technicial differances between both cards...
4870x2 =1600 Stream Processors 5870 =1600 Stream Processors
85 Mhash/s Core 0 56-70 Mhash/s Core 1 350-390 Mhash/s Core 0
DDR3 with a 256x2 (512-bit bus) DDR5 with 256-bit bus
ROP's 16x2 (32) ROP's 32
Texture Units 40x2 (80) Texture Unites (80)
32-bit floating point 32-bit floating point In nearly all directx 9 and 10 games the 4870x2 and 5870 are Neck in Neck.
It puzzles me that the 4870x2 does so very bad in compairison to the 5870 when memory speed and bandwith are absent requirments... only raw processing power is needed. I would expect to lose a certain percentage of computing effecency between core 0 and core 1 on the 4870x2 but to have a 250% preformance difference in these 2 video cards?
Maybe we need someone who can write custom drivers or an application profile for bitcoin mining? Owning 4 of these cards myself, I would be willing to put up a bounty.
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